Nut-lock.



J. H. FUNDERBURG.

NUT LOOK.

APPLICATION FILED NOV.17, 1910.

1,631,639. Patented July 2,1912.

WITNESSES ]NVENTOR barman s'rarns rarnn'r carton. t Jar/men. runnnnnune, OF LAKE diianiins, Louisiana nuances.

T all whom it may concern.

Be it known that I, JAMES H. FUNDER- none, a citizen of the United States, residing at Lake Charles, in the parish of Cal- .casieu and State of Louisiana, have invented certain new and useful Improvements in Nut-Locks, of which the following is aspecilication, reference being bad therein to the accompanying drawing.

This invention relates to nut and bolt locks and the principal object of the same is to provide simple bolt carrying means which will permit-a nut to be readily tightened on the bolt but will prevent a reverse movement of the nut on the bolt.

in carrying out the objects of the invention generally stated above it will be under-. stood, of course,.that the essential features thereof are necessarily susceptible of changes in details and structural arrang ments, one preferred and practical embodi ment of which is shown in the accompanying drawings, wherein Figure 1 is a view partly in longitudinal section and partly in elevation of the improved nut and bolt lock. Fig. 2 is a View in elevation thereof. Fig. 3 is a transverse sectional view taken on the line 3--3, Fig.

2, looking in the direction of the arrow. Fig. 4 is a fragmentary longitudinal sectional view of the bolt forming a part of this invention. Fig. 5 is a view in elevation of the nut forming a partof this invention. Fig. 6 is a detail perspective view of the device for locking the nut andbolt together.

Referring to the accompanying drawings by numerals, it will be seen that the improved nut and bolt lock comprises a bolt 1 the threaded portion 2 of which is providedwith a longitudinal groove 3. The out-er end of the groove 3 is closed by the flat abutment wall 4, and the inner end thereof terminates in a recess 5 having. a beveled wall 6 that extends from a flat shoulder 7 at the entrance to said recess.

A spring locking key forms a part of this invention, said key being formed of flat resilient metal that is longitudinally folded to provide a flat body 8 which is seated in groove 3 and a spring lip 9 that projects beyond said groove and is on an incline re1a- Specification of Letters fittnt. v i J A y Application filed. November 17, 1910. Serial No. 592,894.

' of the tongue 10 with the body 8.

tive to said body. Said body 8 is of substantially the same length as the groove 3 and has a snug fit therein. The inner end of said body is provided with a tapering tongue 10 and a shoulder 11 at the junction The nut 12 used in connection with this invention has its threaded bore 13 provided with longitudinal slots 14.

In assembling the invention, the body 8 is snapped into position by rocking the tongue 10 on the shoulder 7 which causes the body 8 and the tongue 10 to be snugly seated, in the groove 3 and recess 5. When the body is within the groove 3, the lip 9 projects beyond the said groove and being on an incline relative to said body, it will be seen that the nut 12 when being adjusted to a tight position on th bolt will force the lip 9 onto the body 8 so thatsaid lip will not prevent the nut'being tightened, Said lip being resilient, it will be clear that the same will spring to engagement with one of the slots 1d of the nut 12 if an attempt is made to remove the nut, so that the release? of the nut isprevented. Preferably the outer-end 15 of locking lip 9 is beveled so that the same will offer but slight resistance to the nut being placed on the bolt.

It will be seen fro-m the foregoing that by means of this invention the locking lip 9 is at all times retained in proper position to prevent the accidental release of the nut, and, as is shownmore clearly in Fig. 2 of the accompanying drawings, the beveled end of said lip. projects beyond the nut when the nut is adjusted to a tight position, so that when necessary or desirable the said lip can be forced onto the body 8 by the use of a suitable tool or implement to permit the nut to be removed from the bolt.

\Vhat I claim. as my invention is A new. article of manufacture comprising a bolt having a longitudinally extending groove formed in one side thereof, said groove terminating in a socket at its inner end, a key positioned in said groove and being formed of a blank sheet comprising a pair of leaves, one of said leaves being adapted to lie snugly upon the bottom of said groove and having a lug carried by the Q l 1 1,031Qe39 inner end of said leef, seidlug bei'n adap t- In testimony whereof I hereunto afiix my "ed to fit-ini said socket, one ofsai leaves signature in presence of two. Witnesses.

tapering near its outer end from the outer edge thereof to, the junction of said leaves JAMES H. FUNDERBURG. thereby fo'rmin fa gradually tapered end upon said key or allowing a nut to easily Witnesses:

glide over said key while being threaded JOHN ECKER,

upon said bolt.

D, E. L ons. 

